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tictactoe.h Example File
designer/taskmenuextension/tictactoe.h

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    ** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
    **
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    ** License version 2.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of
    ** this file.  Please review the following information to ensure GNU
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    #ifndef TICTACTOE_H
    #define TICTACTOE_H

    #include <QWidget>

    class QSize;
    class QRect;

    class TicTacToe : public QWidget
    {
        Q_OBJECT
        Q_PROPERTY(QString state READ state WRITE setState)
    public:
        TicTacToe(QWidget *parent = 0);

        QSize minimumSizeHint() const;
        QSize sizeHint() const;
        void setState(const QString &newState);
        QString state() const;
        void clearBoard();

    protected:
        void mousePressEvent(QMouseEvent *event);
        void paintEvent(QPaintEvent *event);

    private:
        enum {Empty = '-', Cross = 'X', Nought = 'O' };

        QRect cellRect(int row, int col) const;
        int cellWidth() const {return width()/ 3;}
        int cellHeight() const {return height()/ 3;}

        QString myState;
        int turnNumber;
    };

    #endif


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